Fixed coil moving needle ohmmeter

Made:
1881
SMG00224352

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SMG00224352
Science Museum Group
© The Board of Trustees of the Science Museum

Fixed coil moving needle ohmmeter, with commutator for calibration, first form 1881

Details

Category:
Electricity Supply
Object Number:
1909-26
type:
ohmmeter
credit:
Ayrton, H.